43 Code

[Razer]

At this rainy morning i was at the freeway at 70mph and the check engine light comes on :s.

Only at high speeds goes on, 55 mile up and more than 25 seconds at same rpm's

The code i got is the 43

->Fuel Supply System
Defective or malfunctioning fuel supply system



i know could be a lot of things but some one have an idea what could be the problem.


Note: yesterday i put away my Cat. Con.
91 f22A6
did you think this could be the reason for the check engine light.

Thanks for the help

[91AccordLX]

check your o2 sensor, A LOT of time code 43 usually happens to be an faulty oxygen sensor, check it out.

[Razer]

reason

The reason was, that i put away the cat conv. and this thing keeps some temperature for a good and well o2 work; in the freeway the o2 get's more cold just a few grades, but thats enought to don't work fine.